redis-smq-common
Version:
Provides essential components and utilities shared across RedisSMQ packages.
52 lines • 2.04 kB
JavaScript
;
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
return new (P || (P = Promise))(function (resolve, reject) {
function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
step((generator = generator.apply(thisArg, _arguments || [])).next());
});
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.net = void 0;
const net_1 = require("net");
function isPortInUse(port) {
return __awaiter(this, void 0, void 0, function* () {
return new Promise((resolve) => {
const server = (0, net_1.createServer)()
.once('error', (err) => {
if (err.code === 'EADDRINUSE') {
resolve(true);
}
else {
resolve(false);
}
})
.once('listening', () => {
server.close();
resolve(false);
})
.listen(port, '127.0.0.1');
});
});
}
function getRandomPort() {
return __awaiter(this, void 0, void 0, function* () {
const MIN_PORT = 1024;
const MAX_PORT = 65535;
const MAX_ATTEMPTS = 100;
for (let attempt = 0; attempt < MAX_ATTEMPTS; attempt++) {
const port = Math.floor(Math.random() * (MAX_PORT - MIN_PORT + 1)) + MIN_PORT;
if (!(yield isPortInUse(port))) {
return port;
}
}
throw new Error('Unable to find an available port after multiple attempts');
});
}
exports.net = {
isPortInUse,
getRandomPort,
};
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